Embroidering-machine.



J. A. GROEBLI.

EMBROIDERING MACHINE.

APPLICATION TILED 001. 2a, 1901.

902,814. Patented Nov. 3, 1908. a Bums-awn 1.

34 Raj J. A. GROEBLI.

EMBROIDERING MACHINE.

APPLICATION FILED OUT. 28,1901

902,81 4. Patented Nov. 3, 1908.

3 SHEETSSHEET 2.

'1 TNLIYSES V J. A. GROBBLI.

EMBROIDEBrING MACHINE.

AFPLIGATION FILED oo'r. 28,1901.

Patented Nov. 3, 1908.

3 SHEBTS-SHEET 3.

, ATTORNEY:-

UNITED STATES PATENT OFFICE.

JUSIQPII A. UROEBLI, OF NEW YORK, N. Y., ASSIFNHP 'lt) h'lIllSlllllllllCOMPANY, OF NEW Ytlllli. N. 1'.

EMBROIDERING-MACHINE Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed October 28, 1901. Serial No. 80,252.

all. whom. it may concern.-

lie it known that I. .losm'u A. Giannini. a citizen of the l'nilcdStates, residing at the borough of Manhattan, city, county, and State ofNew York, have. invented certain new and useful Improvements inlhnbroidering-ltlachines, of which the. following is a specification.

My invention relates to cmbroidcring machines and has special referenceto improving the construction of embroider-inc ma chines having scallopmechanism.

In I S. Letters Patent No. (307,8l8 granted on the 26th day of July,1998, to the Kursheedt. l\ianufacturing Company as my assignee, I haveshown an emhroidering machine provided with automatic scallop mechanismgoverned and controlled by a jacquard or pattern mechanism of thegeneral type shown in II. .5. Letters Patent No. 528,632 granted on the(ith day of November. 1894, to the Kursheedt. hltllltlftKtlllillgCompany as my assigns-e.

By my present invention I seek to produce an improved construction ofscallop mechanism of a different type from that shown in the U. S.Letters Patent. No. 607,848 aforesaid and to further improve the machineshown in the said Letters Patent.

I will now describe one form of machine in'which my present invention isembodied and will point out the essential features of my presentinvention in the claims at the end of this specification, without,however, limitin myself to the construction shown, but desiring toinclude all structures of this character which. within the limitationsimposed by the state of the art, are equivalent structures. I may saythat this invention finds its chief embodiment in machines wherein thescallop mechanism requires to be positioned for use and normally is notin operative position.

In the accompanying drawings, which illustrate one embodiment of myinvention, Figure I is a side elevation of one end of an embroideringmachine showinga sufficient number of parts to illustratey presentinvention; it bein undcrst d that many essential parts 0 theembroidering machine audits controlling jacquard or attern mechanism areomitted from the i ustrat-ion in order to fully and adequately presentthe invention without undue complication. Fig. II is a side elevation ofthe parts shown in Fig. I. Figs. III and IV are detail views of thelocking pawl which serves at n'e-detcrmined times to connect the scallopmechanism to its driving shaft which imparts motion thereto; Figs. V,VI. VII and VIII are detail views showing the parts which connect thescallop apparatus 'iositioning bar with its advancing and restoringlever in several successive positions.

In the drawing 1 indi ates the frame of the emhroidering machine, and 2the jacquard or pattern mechanism for controlling the functions thereofwhich is preferably of the type shown in U. S. Letters Patent. No.528,632 above mentioned.

3--3 indicate the levers for operating one of the talie-np bars of thcmbroidering machine, or other suitable functioning mechanism, whichlevers may be connected by link \.()IlllL( il()l1S 4, provided with a.pin 5 cooperating with a cam 6 on a shaft 7. The take-up bars may benormally given their usual motion by any usual well-understood operatingmeans not shown, and the cam 6 when the scallop attachment is in actionserves to vary or modify this motion in harmony with the action of thescallop mechanism.

8 indicates one set of the scallop mech anism, which is given a swingingmovement from a vertical rock-shaft 9 to which movement is imparted. bycam 10 on the shaft 7 in any desired manner. The shaft 7 is pro videdwith a gear 11 which receives its motion from a gear 12, which receivesits motion from a pinion 13 carried upon a sleeve 14, loosely carriedupon a shaft 15 which is continuously driven from the main shaft of themachine.

A notched disk 16 is secured to the shaft 15, see Figs. I, III and IV.The sleeve 14; is provided with an arm 17 to which a dog 18 is pivotedhaving a tail 19 receiving the thrust of a leaf-spring 20 secured to,the sleeve 14. The nose of the'dog 18 is adapted to engage in the notch21 of the diskjlti and the tail 19 is adapted td rest normally when thescallop. apparatiis is out of action The operating rod 23 of the scallopmechanism is provided with a pin 24 which is adapted to rest in a notchof a cam 25 fixed on the shaft 7 when the scallop mechanism is out ofaction. The operating rod 23 is provided with one or more racks 26-27,the rack 26 cooperating with a toothcdlsector 28 which serves to movethe upper scallop hooks when they are in action and rack 27 coiiperatingwith a sector 29 which serves to operate the lower row of scallop hooksand to raise the operating rod 23 to lift the pin from the notch in thecam 25. The 0 crating rod 23 is connected by a suitab e link 30 with onearm of a bell crank lever 31, whose other arm 32 is connected by rod 33with an arm 34-pivoted at 35 and pro vided with an arm 36 havingjournaled thereon a ear 37 and sheave 38. The gear 37 is denuded ofasufficient number of teeth The counter shaft 41 is provided with a conepulley 45 which is connected by a belt 46 with a. cone pulley 47 carriedupon a suitably driven shaft 48. The shaft 48 imparts motion to theshaftttl b which the main shaft 44 of the embroi ering machine isdriven. at belt shifter 49 slides upon a suitable guide, and is adaptedto embrace the belt 46 which transmits motion from the pulley 47 to thepulley 45. A cord 50 attached to the belt shifter is connected at oneend to the sheave 38 and asses around the sheaves 51-52, being providedwith a weight 60, which wei ht serves to restore the parts to theirnorma position.

A latch lever 53 actuated by a spring 59 is pivoted at 54 and isprovided with a toe 55 adapted to cooperate with the abutments 5657 tolock the gear 37 in the position into which it has'been moved. Theobject and function of the parts just described to change the rate ofmotion of the embroidering machine when the scallop mechanism is throwninto action. The detailed o oration thereof is as follows: The bellcranr 32 being swung, pushes upon the setting rod 33, which permits thespring 58 to raw the short end 36 of the lever 34 downward, therebymeshing the gear 37 with the pinion 40 and causing the said gear to berotated by the pinion 40. The rotation of the gear 37 will cause thesheave 38 to pull uponthe cord 50 to cause the belt shi per 49 to bemoved laterally to shift the be t 46 upon the cone pulleys, therebychanging the rate of motion of the cmbroidering machine to conform tothe requirements of the festoon functions.

When the blank space 37 in the gear, 37 reaches the pinion 40, rotationof the gear will cease and the abntments 56--57 will have been broughtinto position to cooperate with the locking lever 53 whose toed end 55is forced upward. by its spring 59. \V hen the festoon operation ceasesthe rod 33 is pulled, thereby raising the gear 37, which being thusreleased from the locking lever 53 is permitted to rotate in a reversedirection under the influence of the veight 60 so that the parts arethus automatically restored to a normal position. It will likewise beobserved that the belt shifting will occur immediately upon theoperation of the link 33 so that the other operations of theembroiden'ng machine may take place immediately.

Having described the operation of the scallop apparatus and the speedcontrolling mechanism, I will now proceed to describe the means wherebythe functions of all these mechanisms are initiated. The sector 29 iscarried upon a shaft (31 n'ovided with an arm 62 connected to a scallopapparatus positioning bar 63. The scallop apparatus positioning bar,which will hereinafter be referred to as the positioning bar, isconnected to a lifter or mover (l4 operated from the jacquard or patternmechanism. This lifter or mover 64 is preferably under the control ofthe jacquard pins which in Letters Patent No. 528,632 above referred toare identified as serving to initiate functions and effects in theembroidering machine other than moving the fabric frame. This jacquardlifter or mover serves to lift or move the end of the positioning bar atpredetermined times in order to bring the edge 64 thereof into positionto be acted upon by a setting and restoring lever 67 rece ving itsmovenu-nt from a cam on the shaft 44 of the embroidering machine. Thislever 67 which is pivoted at (58 has a swinging movement imparted to itby the said cam and serves when the free end of the positioning bar israised into its path of movement to thrust the said positioningbar-forward, thereby raising the rod 23 to, position the scallopattachment for operation, disengage it fromthe notch in its operatingcam 25, and to set the speed regulating or determinin a )aratus inmotion.

In Figs. VII and VIII, I have shown in detail the mechanism forinitially moving the positioningbar (13 holding it in its activeposition, and restoring it to its ini: tial position.-

In Figs. VI, VII, and VIII I have omitted the arm 65; thisarm 65operates to reset the connecting piece when the parts have been restoredto their initial positions, and also to move the connecting piece thefirst step of its movement.

The arm 65 is pivoted at 69 and is rovidcd with a cam and with an arm 70w nch is provided with a bowl engaging in the cumtltl. A bracl-zet 7tforming a stutionary 6 part of the machine frame is provided with alocking piece 72 having,' a hoolc i with an exterior cam surface 73. andwith a retaining: piece (I. lhe positioniin har (l3 is n'ovided with alocking projection ll, which is adopted 10 to lock behind the hook 2'ol. the locking: piece 72. Pivotnlly carried hy the free end of thepositioning, har (ii-l is a minim-ting piece 75 which is herein shown asbeing of a triangular shape a at one side of its pivot 76 and' providedwith a lug f. ()n the other side of its pivot the connecting piece ispro vided with a finger j and a hooked end of eculiar sha )e the recessof the hooked end eing )rovied with an inclined face k at:

one si e and an inclined face 2 at the other side. The parts justdescribed serve to support and retain the end of the. positionin laarwhen it has been lifted by the jacquar and the lever 67 has operated topush it forword and the scallop mechanism has come. into operatiom andvto effect with the aid of the lever 67 the restoration of thepositionin% to its initial position.

, eoperatmn-of the construction ust described is ,as follows: When theja nard iifter'has raised the free end of the posltion- 'ing bar 63 andhas brought the surface (54 oft-he said her 63 within the rangeof'action ofjthe arm 67; the said arm imparts to the '85 said haraiorward motion-to efl'ct the positio'niof the scallop apparatus. Asecondary e cot tl'iis movement is to bring the triangular piece a intothe path of movement of the cam c whieh depresses same so that thQnetresult of this movement will he to brm the lugf behindthe retainingpiece 9 of ,t e bracket 71, The parts are so pos1 .-t ione gl-' i1 iorder to hold the positioning bar in its 'set'position, and to preventit from following the return movement. This is the position-shown iiiFig. VI wherein the bar. 63 has been' slightly. raised and moved in thedirection of the arrow in Fi V. As the first'ano'tion of the statuedevloe istaken the "timbar'tlt-l is moved sli h-ty forward by the ..-sc'al -lop device, and a owed to drop'sl .htly

'by the jacquard, so that the locking ug h" jj'dropsbehind the book iand is there retained .0! stipportediwhile the scallop apparatus is atmaking its motions; it being understood that -th fingenjxcome's againstthe cam 78 to tfiirther swing the-connecting piece. 'When the.eeal'lopWPP iBtushas nlshed itsmo-- the hardil'ifts'the'gpd oftlie -bar63 310' Midd e? "ve'r'r fi'i' -a gain comes-into action.

; f- 'Lhis lever 67 sw-ln .ing forward strikes a aifist th --ia;ce k, terebv further tilting t 0 come piece 75 andeutming-the triangularportion 77 of the lever .67- into the lt'k 'ttfi ll un il to the otherparts of the maillllttl.

by the chan ejo'f sieed.

in the connecting piece 75. The re-' turn swing of the level ('7 in thedirection of the arrow in Fig. VI ['1 is ctlective to draw thepositioning lmr a; hack to its initial position as the jacquard holdsthe end of bar ll -l up so that the lug; 11. will ('lea'r the hook i onthe return movenn-nt. and us the; jatxpnird apparatus permits the end oflmr tlil to drop the counsel-ling piece will lie restored to its normalposition which is shown in Fig. I] h the end u of arm (15 strikingugroinsti it.

The operation of the apparatus as a whole will now llt' tles -rilu-il.lhe emlu'o'iderilnr machine in normally operating imparts a normal throwto the take-up lltll' operating Xouflnt a n-edetrrmiuml period thejacquard apparatus comes into action to effeet the positioning of thescallop apparatus. To do so it raises upon the litter (it, thereby rasing the iositioning lmr (i -l into position to be IHOHtl forward by thevibrating arm 67, which forward movement. of the positioning bar iseffective to raise the operating her 23, thereby positioning thefestooii mechanism, lifting the pin Qtont of the slot in the cam 25, andby removing the rest or shutll lellt 22 from the tall 19 of the lever 18(see Figs. II, Ill and 1\') couples the scallop shaft 16 whereby theproper cums will come into action and effect a proper rnovement'ot' thescallop apparatus. At the same time the rod 30 rising permits the spring58 to draw downward upon the arm 36 thereby throwing the speed adjustting or determining device in action, and as the action of the said100 3380(1 deter-mining apparatus is brou ht it wont by positivemovements, the cmhroit er- -in-g machine will go into action at the'n'oper moment and ataproper rate of speed.

hen the sewing functions" of the embroidering machine are beingperformed the takeup mechanism of course, operates in harmony with theneedle movement, but as the timing of the needle movement changed'whenthe scallop mechanism goes into action the no needle movement isdlfierently tiined and the take-utplmovement varies accordin ly, thetlmmgof e entire mechanism being 0' anged Havi escribe my invention what1116 claim an desire to secure by Letters Patent 1. An embro'iderinmachine including in its structure a sea op apparatus and its operatingmeans, andindependent automatic positioning means for ppsitioning thescalop apparatus for operation, operating independently of the scallopapparatus operating means. p

i 2. An embroidering mach'me, including in 126 its structure a scallop aparatnsmeans for operating thesame a'11 a common auto matic meansforpositioning the scallop apparatus for action and'initiating theoperation of the said scallop apparatus. 130

3. An embroider-in organism, comprising the combination with anembroidering machine provided with scallop mechanism, operatingmechanism therefor, and independently operating, positionin mechanismfor said scallop mechanism of a jacquard device for initiating theoperation of the positioning mechanism;

4. An embroidering organisln comprising in its structure an embroideringmachine provided with scallop mechanism, operating; mechanism thereforand independently operating positioning mechanism for the seallopmechanism, an actuating device for said.

positioning mechanism, and automatic means for controlling the operationof the actuating device.

5. In an emhroidering organism the combinution with an -emb'roiderlngmachine, including scallop mechanism, operating mech anism therefor,independently operating 0- sitioning mechanism for the said seal opmechanism, and actuating mechanism for the said positionime mechanism,of pattern mechanism controlling the inter-action of the positioningmechanism and its actuating mechanism.

6. In an embroidering machine the combination of a scallop mechanismwith pattern controlled mechanism for determining its periods of action,a take-u mechanism operated in time with thesca lo mechanism', thetiming of the operation 0 said takeup mechanism being also determined bythe pattern mechanism substantially as described.

7. In an embroidering miichineincluding a pattern mechanism and, anoperating element of the embroidering machine, with means forpositioningthe said operating element for action controlled from the patternmechanism and mechanism for determining the rate of speed at which suchindividual o 'icrati'im elen'ient'shall operate, comprising a'Vlll'llll'lTG speed device operating normally to drive.thermbroideringmachine at anormal )Ufld' and comprising means for varying tie specdxatpredetermined times emhodyinn positively acting cngagcahle anddiscngageable gears for varying the ratio of transmission betweenelements of the variahle speed device and means for initiating thettpcraliou of the said gear inccl-lauism from the positioning mechanismcomprising positively actuated devices: for insuring immediate positiveaction of said gear mechanism. I i

S. In an embroidering mechanism the combination of a scallop mechanism,operating mechanism therefor, indepcmleutly operat ing means forpositioning the said scallop nicclnmism and speed regulating mechanismcontrolled by the positioning of the scallop mcchanisn'i.

9. In an ombroidering machine the comwas 14 hination of a scallopmechanism, operating mechanism therefor, a jacquard or pattern mechanismand independent automatically operating means controlled by the jacquardor attern mechanism for positionin the seal op mechanism for action andwith rawingg, it out of operative position.

10. In an embroidering mechanism the combination of a scallop mechanism,operating means therfor,'1neans for positioning the said scallopmechanism and a pattern mechanism for controlling the operation of theposij'ionin mechanism, sitioning mechanism is set and returned to aninitial position through the intervention of pattern mechanismindependently of the operation of the scallop mechanism.

11. In art emhroidering machine the combi'nation of a scallop mechanism,means for positioning the said scallop mechanism adapted to position thesaid scallop meehanism and to permit it to remain ositioned during thenormal operation of t e scallop mechanism and for withdrawing the scallomechanism out of operative 'osition and pattern mechanism for controling the said positioning and withdrawing' means.

12. An oinbroidering machine including an operatin element thereof,means for bringing sai element into action and means for-changing thespeed of the embroidering machine to effect the proper timing'ofithe inits structure a variable speed device means for gradually ehan ing theratio 0 transmission between the e ements of the V8.4 riable speeddevice so as to efleet a gradual change in the speed of the embroideringmachine at predetermined times, comprising engageable and disengageablegears and pattern mechanism for controllin the operating element and theengageab e and disengagcahle gears.

' An e'mbroidoring machinecomprising in its structure a scallomechanism, a pattern mechanism for setting the scallopmech anism inaction, and means for operating sitioning means for positionin the eelelemeat for, operation. and w t drama the said element from o oration atpre ete mined timesa.varia 1e speed device nor= mally driving theernbroiderin .machine at a normal rate of speed and inc uding meanswhereby' the pooperations of the said element, comprising said scallopmechanism com rising a varifor effecting a gradual change in the ratioof transmission between elementsof the variable speed device embodyingpositively acting engageable and disengageable gears with means fordriving one of said gears independently, and pattern mechanism for controlling the ositioning means and the intermeshing oi the engageable anddisengageable gears, so as to gradually change the speed of the machineto accommodate the timing of the operating element.

15. In an embroidering organism the combination of embroidering devices,a variable speed connection including cone pulleys arranged to drive theembroidering devices at a normal sneed, engageable and disengageablegears or varying the ratio of transmission between the cone pulleys, andmeans for causing said gears to mesh and change the speed ratio of saidpulleys and pattern mech' anism adapted to operate said last means.

16. In an embroidering organism the combination of an operating elementof an em broidering machine and positioning means for positioning thesame for operation, a variable speed connection for the embroideringmachine, including cone pulleys and positively acting engageable anddisengageable gears operating to vary the ratio of transmission betweenthe cone pulleys, and a connectlon between the said gears and thepositioning mechanism whereby when the said operating element ispositioned for operation a chan e of speed of the embroidering machinewlll be thereby effected.

17. In an embroidering organism the combination of an operating elementof an embroidering machine, means for positioning embroidering machlnehaving means for ef-' footing its normal operation, means for setting orpositioning said element for action and for Withdrawing said elen'ientfrom the set position, said means being independent oi the operatingportions of the said mechanism, and pattern mechanism for controllingthe action of the said setting and withdrawing mechanism.

JOSEPH A. GROEBLI;

Witnesses A. II. Kuasnaan'r. M. Mcl lnmoo'r'r.

